双片TM1300视频采集卡的高速数据传递方案

A High Speed Data Transfer Scheme for Twin TM1300Chip Based Video Grabber

介绍了一种基于双片TM1300的双路视频采集卡的高速数据传递方案。在分析了TM1300芯片的EVO、VI、PCI、SSI等外设接口特性的基础上,提出了用EVO与VI互联来实现双路视频采集卡中双片TM1300间高速数据传递的设计方案。其特点是实现简单,数据传送效率高,并采用CPLD芯片设计了EVO与VI的逻辑接口,通过MAX+PLUSII时序仿真验证了CPLD设计的正确性。

This paper introduces a high speed data transfer scheme for twin TM1300chip based 2channel video grabber. Based on the analysis of the characteristics of TM1300 onchip peripheral interfaces, EVO, VI,PCI and SSI, it proposes a design scheme of high speed data transfer between two TM1300 chips on 2channel video grabber by use of interconnection of EVO and VI, The features include easy implemantation, high data transfer efficiency and the design of logical interface of EVO and VI using CPLD device. The correctness of CPLD design is verified by MAX+PLUS II timing simulation.